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EGTB: win in 4 half-moves

# move score
1 Rg3 win in 3 half-moves
2 Ra6 draw
3 Rc6 draw
4 Rd6 draw
5 Re6 draw
6 Rg7 draw
7 Rg8 draw
8 Ke1 loss in 2 half-moves
9 Ke2 loss in 2 half-moves
10 Kf3 loss in 2 half-moves
11 Kff2 loss in 2 half-moves
12 Kfg1 loss in 2 half-moves
13 Kg3 loss in 2 half-moves
14 Kgf2 loss in 2 half-moves
15 Kgg1 loss in 2 half-moves
16 Kh1 loss in 2 half-moves
17 Kh2 loss in 2 half-moves
18 Kh3 loss in 2 half-moves
19 Rb6 loss in 2 half-moves
20 Rf6 loss in 2 half-moves
21 Rg4 loss in 2 half-moves
22 Rg5 loss in 2 half-moves
23 Rh6 loss in 2 half-moves